(Keynote) Electrode-Assisted Electroless Metal Deposition - Palladium Nanocatalysts for Organic Fuel Oxidation

摘要

Electroless metal deposition can be completed by using a reactive surface consisting of a redox active material that acts as electron donating medium and drives the metal ions reduction reaction. The important peculiarity of the electroless process driven by surface-immobilized redox active species is that the reductant capacity is limited by the available surface-confined redox sites. Moreover, rereducing the oxidized reactive surface provides the opportunity to repeat the electroless metal reduction without dissolving the once deposited metal phase. The necessary condition for driving this type of process is to keep the initial oxidation state of the reactive electrode surface at potentials negative enough with respect to the equilibrium potential of the depositing metal ions.